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Finger dexterity tests

C J Gearhart, B Varone, M H Stella, B F BuSha, C J Gearhart, B Varone, M H Stella, B F BuSha, M H Stella, B F BuSha, B Varone, C J Gearhart
Every year, thousands of Americans suffer from pathological and traumatic events that result in loss of dexterity and strength of the hand. Although many supportive devices have been designed to restore functional hand movement, most are very complex and expensive. The goal of this project was to design and implement a cost-effective, electrically powered exoskeleton for the human hand that could improve grasping strength. A 3-D printed thermoplastic exoskeleton that allowed independent and enhanced movement of the index, middle and ring fingers was constructed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Lorenzo Peppoloni, Emily L Lawrence, Emanuele Ruffaldi, Francisco J Valero-Cuevas
The Strength-Dexterity (SD) test measures the ability of the pulps of the thumb and index finger to compress a compliant and slender spring prone to buckling at low forces (<3N). We know that factors such as aging and neurodegenerative conditions bring deteriorating physiological changes (e.g., at the level of motor cortex, cerebellum, and basal ganglia), which lead to an overall loss of dexterous ability. However, little is known about how these changes reflect upon the dynamics of the underlying biological system...
2017: PloS One
Jan Rusz, Tereza Tykalová, Radim Krupička, Kateřina Zárubová, Michal Novotný, Robert Jech, Zoltán Szabó, Evžen Růžička
It is currently unknown whether speech and limb motor effectors in Parkinson's disease (PD) are controlled by similar underlying brain processes. Based on computerized objective analysis, the aim of this study was to evaluate potential correlation between speech and mechanical tests of upper limb motor function. Speech and upper limb motor tests were performed in 22 PD patients and 22 healthy controls. Quantitative acoustic analyses of eight key speech dimensions of hypokinetic dysarthria, including quality of voice, sequential motion rates, consonant articulation, vowel articulation, average loudness, loudness variability, pitch variability, and number of pauses, were performed...
December 8, 2016: Journal of Neural Transmission
Daniel Kunovsky, Reinie Cordier, Paula Bray, Joshua Burns
Hand weakness and impaired manual dexterity have been reported in children with Charcot-Marie-Tooth disease type 1A (CMT1A). This early onset of upper limb involvement might explain frequent clinical referrals for assessment and treatment of impaired handwriting performance. The aim of this study was to examine the impact of CMT1A on handwriting speed and legibility, and identify demographic, anthropometric and physical measures that might relate to handwriting performance. Handwriting speed (Handwriting Speed Test), handwriting legibility (Evaluation Tool of Children's Handwriting-Cursive) and hand strength (hand-held dynamometry of tip pinch, lateral pinch and grip) were assessed in 30 children with CMT1A (aged 8-17 years) and 30 age- and sex-matched controls...
December 5, 2016: Journal of the Peripheral Nervous System: JPNS
Mathilde Connan, Eduardo Ruiz Ramírez, Bernhard Vodermayer, Claudio Castellini
In the frame of assistive robotics, multi-finger prosthetic hand/wrists have recently appeared, offering an increasing level of dexterity; however, in practice their control is limited to a few hand grips and still unreliable, with the effect that pattern recognition has not yet appeared in the clinical environment. According to the scientific community, one of the keys to improve the situation is multi-modal sensing, i.e., using diverse sensor modalities to interpret the subject's intent and improve the reliability and safety of the control system in daily life activities...
2016: Frontiers in Neurorobotics
Füsun Şahin, Nilgün Şimşir Atalay, Nuray Akkaya, Sibel Aksoy
STUDY DESIGN: Cross-sectional study. PURPOSE OF THE STUDY: The purpose of this study was to identify which demographic and anthropometric features affect performance (time) on the functional dexterity test (FDT). METHODS: One hundred fifty-two healthy subjects between the ages of 20 and 80 years were included in this cross-sectional study. Demographic characteristics (age, gender, height, weight, and dominant hand) and anthropometric (the girths of the first 3 fingers) variables were recorded, and the FDT (net time and total score) was performed...
November 25, 2016: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
Philippe Dahdal, Antonia Meyer, Chaturvedi Menorca, Karolina Nowak, Anne D Roesch, Peter Fuhr, Ute Gschwandtner
AIMS: The objective of this study was to investigate the relation between impaired fine motor skills in Parkinson disease (PD) patients and their cognitive status, and to determine whether fine motor skills are more impaired in PD patients with mild cognitive impairment (MCI) than in non-MCI patients. METHODS: Twenty PD MCI and 31 PD non-MCI patients (mean age 66.7 years, range 50-84, 36 males/15 females), all right-handed, took part in a motor performance test battery...
September 20, 2016: Dementia and Geriatric Cognitive Disorders
Hiroyuki Hayashi, Daiki Nakashima, Hiroka Matsuoka, Midori Iwai, Shugo Nakamura, Ayumi Kubo, Naoki Tomiyama
Exercise, such as cardiovascular fitness training, has been shown to have utility in improving executive function but is difficult for older adults with low mobility to perform. Accordingly, there is interest in the development of regimens other than high mobility exercises for older adults with low mobility. The aim of the present study was to evaluate the association between sensory motor function of the upper limb and executive function in community-dwelling older adults. A cross-sectional study was conducted in 57 right-handed, independent, community-dwelling older adults...
August 2016: Nagoya Journal of Medical Science
Nora E Fritz, Deborah A Kegelmeyer, Anne D Kloos, Shannon Linder, Ariane Park, Maria Kataki, Anahita Adeli, Punit Agrawal, Douglas W Scharre, Sandra K Kostyk
INTRODUCTION: Differential diagnosis of dementia with Lewy bodies (DLB), Parkinson's disease with dementia (PDD), Parkinson's disease (PD) and Alzheimer's disease (AD) is challenging. Comparative motor profiles of these neurodegenerative disorders may aid in earlier diagnosis but have not been extensively studied. METHODS: Groups were rigorously matched by age, education, and sex. DLB/PDD participants were matched by Mini-Mental State Examination Score to individuals with AD and by Unified Parkinson's Disease Rating Scale motor scores to individuals with PD...
August 11, 2016: Gait & Posture
Araceli Ortiz-Rubio, Irene Cabrera-Martos, Janet Rodríguez-Torres, Waldo Fajardo-Contreras, Ana Díaz-Pelegrina, Marie Carmen Valenza
OBJECTIVE: To evaluate the effects of a home-based upper limb training program on arm function in patients with multiple sclerosis (MS). Additionally, the effects of this program on manual dexterity, handgrip strength, and finger prehension force were analyzed. DESIGN: Randomized, single-blind controlled trial. SETTING: Home based. PARTICIPANTS: Patients with a clinical diagnosis of MS acknowledging impaired manual ability (N=37) were randomized into 2 groups...
December 2016: Archives of Physical Medicine and Rehabilitation
Lisa Rådman, Lars-Gunnar Gunnarsson, Ylva Nilsagård, Tohr Nilsson
PURPOSE: Symptoms described in previous studies indicate that electrical injury can cause longstanding injuries to the neurosensory nerves. The aim of the present case series was to objectively assess the profile of neurosensory dysfunction in electricians in relation to high voltage or low voltage electrical injury and the "no-let-go phenomenon". METHODS: Twenty-three Swedish male electricians exposed to electrical injury were studied by using a battery of clinical instruments, including quantitative sensory testing (QST)...
December 2016: Burns: Journal of the International Society for Burn Injuries
Vincent C H Chung, Robin S T Ho, Siya Liu, Marc K C Chong, Albert W N Leung, Benjamin H K Yip, Sian M Griffiths, Benny C Y Zee, Justin C Y Wu, Regina W S Sit, Alexander Y L Lau, Samuel Y S Wong
BACKGROUND: The effectiveness of acupuncture for managing carpal tunnel syndrome is uncertain, particularly in patients already receiving conventional treatments (e.g., splinting). We aimed to assess the effects of electroacupuncture combined with splinting. METHODS: We conducted a randomized parallel-group assessor-blinded 2-arm trial on patients with clinically diagnosed primary carpal tunnel syndrome. The treatment group was offered 13 sessions of electroacupuncture over 17 weeks...
September 6, 2016: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
Evžen Růžička, Radim Krupička, Kateřina Zárubová, Jan Rusz, Robert Jech, Zoltán Szabó
INTRODUCTION: Timed performance tests were introduced to overcome the disadvantages of subjective evaluation of bradykinesia in Parkinson's disease (PD). We aimed to verify their discriminative properties and compare them with the motion capture analysis of finger tapping. METHODS: We included 22 PD patients (10 M, 12 F), mean age 64 (range 48-82) yrs, Hoehn & Yahr stage 2 (1-2.5) and 22 (10 M, 12 F) normal controls, mean age 66 (41-82) yrs. The key tapping subtest of the Halstead-Reitan battery, the Purdue Pegboard test, and the Bradykinesia-Akinesia Incoordination (BRAIN) test were performed according to the test manuals...
July 2016: Parkinsonism & related Disorders
Victor Gonzalez, Jennifer Rowson, Alaster Yoxall
STUDY DESIGN: Bench and cross-sectional study. INTRODUCTION: Information obtained from dexterity tests is an important component of a comprehensive examination of the hand. PURPOSE OF THE STUDY: To analyze and compare finger interdependencies during the performance of the Purdue Pegboard Test (PBT) and comparative daily tasks. METHODS: A method based on the optoelectronic kinematic analysis of the precision grip style and on the calculation of cross-correlation coefficients between relevant joint angles, which provided measures of the degree of finger coordination, was conducted on 10 healthy participants performing the PBT and 2 comparative daily living tasks...
May 13, 2016: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
Carolina Colomer, Roberto Llorens, Enrique Noé, Mariano Alcañiz
BACKGROUND: Virtual and mixed reality systems have been suggested to promote motor recovery after stroke. Basing on the existing evidence on motor learning, we have developed a portable and low-cost mixed reality tabletop system that transforms a conventional table in a virtual environment for upper limb rehabilitation. The system allows intensive and customized training of a wide range of arm, hand, and finger movements and enables interaction with tangible objects, while providing audiovisual feedback of the participants' performance in gamified tasks...
May 11, 2016: Journal of Neuroengineering and Rehabilitation
Leire Santisteban, Maxime Térémetz, Jean-Pierre Bleton, Jean-Claude Baron, Marc A Maier, Påvel G Lindberg
BACKGROUND: Establishing which upper limb outcome measures are most commonly used in stroke studies may help in improving consensus among scientists and clinicians. OBJECTIVE: In this study we aimed to identify the most commonly used upper limb outcome measures in intervention studies after stroke and to describe domains covered according to ICF, how measures are combined, and how their use varies geographically and over time. METHODS: Pubmed, CinHAL, and PeDRO databases were searched for upper limb intervention studies in stroke according to PRISMA guidelines and477 studies were included...
2016: PloS One
Christian Nissler, Nikoleta Mouriki, Claudio Castellini
One of the crucial problems found in the scientific community of assistive/rehabilitation robotics nowadays is that of automatically detecting what a disabled subject (for instance, a hand amputee) wants to do, exactly when she wants to do it, and strictly for the time she wants to do it. This problem, commonly called "intent detection," has traditionally been tackled using surface electromyography, a technique which suffers from a number of drawbacks, including the changes in the signal induced by sweat and muscle fatigue...
2016: Frontiers in Neurorobotics
T Foki, T Vanbellingen, C Lungu, W Pirker, S Bohlhalter, T Nyffeler, J Kraemmer, D Haubenberger, F Ph S Fischmeister, E Auff, M Hallett, R Beisteiner
BACKGROUND AND PURPOSE: Impaired dexterity (fine hand movements) is often present in Parkinson's disease (PD), even at early to moderate disease stages. It has a detrimental impact on activities of daily living (ADL) such as buttoning, contributing to reduced quality of life. Limb-kinetic apraxia, a loss of the ability to make precise, independent but coordinated finger and hand movements, may contribute to impaired dexterity even more than bradykinesia per se. However, the impact of limb-kinetic apraxia on ADL remains controversial...
August 2016: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
Awad M Almuklass, Ryan C Price, Jeffrey R Gould, Roger M Enoka
The purpose of the study was to evaluate the capacity of an expanded set of force steadiness tasks to explain the variance in the time it takes young men and women to complete the grooved pegboard test. In a single experimental session, 30 participants (mean ± SD) (24.2 ± 4.0 yr; 15 women) performed the grooved pegboard test, two tests of hand speed, measurements of muscle strength, and a set of submaximal, steady contractions. The steadiness tasks involved single and double actions requiring isometric contractions in the directions of wrist extension, a pinch between the index finger and thumb, and index finger abduction...
June 15, 2016: Journal of Applied Physiology
Fabio Vanoglio, Palmira Bernocchi, Chiara Mulè, Francesca Garofali, Chiara Mora, Giovanni Taveggia, Simonetta Scalvini, Alberto Luisa
OBJECTIVE: The purpose of the study was to evaluate the feasibility and efficacy of robot-assisted hand rehabilitation in improving arm function abilities in sub-acute hemiplegic patients. DESIGN: Randomized controlled pilot study. SETTING: Inpatient rehabilitation centers. PARTICIPANTS: Thirty hemiplegic stroke patients (Ashworth spasticity index <3) were recruited and randomly divided into a Treatment group (TG) and Control group (CG)...
April 7, 2016: Clinical Rehabilitation
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